Clasp-pin.



No. 788,733. PATENTED MAY 2, 1905. L. 0. SBNG.

CLASP PIN.

APPLIUATION FILED AUG.19, 1904.

NITED STATES Patented May 2, 1905.

PATENT OFFICE.

CLASP-PIN.

SPECIFICATION forming part of Letters Patent No. 788,733, dated May 2,1905.

Application filed August 19, 1904. Serial No. 221,426.

To It whom it may concern:

Be it known that I, LOUIS O. SuNe, acitizen of the United States,residing at 348 West Jefferson street, Louisville, in the county ofJefferson, State of Kentucky, have invented certain new and usefulImprovements in Clasp- Pins, of which the following is a speciiication.

This invention relates to clasp-pins, and more particularly to thatclass which employs an arm carrying a locking-catch and a pin pivoted tothe arm and adapted to be held at its free end by the locking-catch.

It is an object of the present invention to provide an improved deviceof this kind which will automatically lock thefree end of the pin whenthe pin is pressed against the lockingcatch and will cause the pin toautomatically move to open the device when thepin is freed from thelocking-catch.

Other objects and advantages will appear in the following descriptionand will be particularly pointed out in the claims.

In the drawings, Figure 1 is a side elevation of the pin in a lockedposition. Fig. 2 is a bottom plan view of the pin. Fig. 3 is an end viewshowing the locking-catch. Fig. 4c is a perspective view of the pivotedmember of the locking-catch. Fig. 5 is a section on the line 5 5, Fig.3.

1 indicates the fixed arm of the device, and pivoted near one end at 2is the pin 3, which has a tendency to remain open or at its free endaway from the locking-catch, which will be hereinaftermore fullydescribed. The pin 3 is caused to remain awayfrom the lockingcatch bymeans of a projection 1, thatengages with a portion of the arm 1 andlimits the pins free movementtoward the locking-catch. The pin 3 is madeof spring material, so that a further movement of the free end of thepin toward the locking-catch after being stopped by the projection 4will cause the pin to be placed under tension. Of course any other meanscould be employed to normally hold the pin away from the locking-catch.

The locking-catch comprises a rigid or fixed member 5 and a pivotedmember 6. The member 5 is provided near its point of at- 5 tachment tothe bar 1 with two perforated and parallel ears 7, extendingtransversely of the bar 1, while the free end of the said member isprovided with a guide-face 8, which directs the pin 3 between the twomembers of the catch. The member 6 is provided with two parallel andperforated ears 9, which are pivoted to the ears 7 of the rigid memberby means of a bar 10, which extends longitudinally of the device. Aspiral coil-spring 11 surrounds the bar 10, is secured at each end toone of the members of the catch, and is housed between the ears of bothmembers to hold said members together. A curved arm 12 extends laterallyfrom the pivoted member 6 and serves on its inner face 13 to hold thepin 3 to the catch and on its outer face 14 to assist in guiding the pin3 to the juncture between the members formed by the end of the curvedarm and the guide-face 8 of the fixed member. Projecting from thepivoted memher 6 is an operatingfinger-piece 15, by which the two catchmembers are separated to permit the pin 3 under tension to open.

To locl; the pin 3, it is pressed between the end of the arm 12 and theface 8, and to unlock said arm the linger-piece 15 is'moved, therebymoving the pivoted member 6, and the pin 3, having nothing to hold itand be ing under tension, springs away from the locking-catch.

It will be seen that I have provided a device in which theoperating-spring is housed, the operation is entirely automatic, theparts are few and not liable to get out of order, and the operation issimple.

Having thus described my invention, wha I claim is 1. Adevice of theclass described comprising an arm, a spring-pin pivoted at one end nearan end of the arm, and a catch, near the other end of the arm, withwhich the free end of the pin is automatically interlocked when pressedthereagainst,comprising a fixed member having its free end provided witha guideface and a pair of ears near its other end; a pivoted memberprovided with a pair of cars pivoted on an axis longitudinal of thedevice to the ears on the fixed member, a laterally-projecting armforming a hook on its inner face and a guide on its outer face, and afingerpin extending longitudinally of the device and connecting the earsof the pivoted and fixed members, and a spiral spring surround- 5 ingthe pin between the ears and housed by the members. Q

The foregoing specification signed this 16th day of August, 1904.

LOUIS C. SENG In presence of GEORGE RUBsoH, F. MEIxsEL.

